SA18 postcode area house prices
SA18 has an average sold price of £120,290 across 13,812 HM Land Registry transactions covering 651 postcodes. The largest town grouping is Ammanford.
SA18 at a glance
SA18 postcode area averages £120,290 across 13,812 completed sales covering 651 postcodes. Check the median, sample depth and nearby postcodes before using the average as a market signal.
Average £120,290 · Median £102,500 · 13,812 transactions · +45.7% growth · 651 postcodes
- Data source
- HM Land Registry
- Updated October 2026
- Sample quality
- High transaction depth
- 13,812 sales across 651 postcodes
- Median check
- £102,500
- Mean and median differ — inspect local mix
- Trend signal
- +45.7%
- The five-year price movement is +45.7%.
- Coverage
- 651 postcodes
- Largest town: Ammanford
SA18 Postcode Area Overview
Postcodes in SA18
Compare postcodes in SA18
Use the location comparison tool to put SA18 postcodes beside other postcode areas, towns or districts before narrowing your shortlist.
Property valuation guide
Estimate a property value in the SA18 area
Professional valuers use recent sold prices as comparable evidence. In the SA18 area, the median sold price is £102,500 and the average is £120,290, based on 13,812 HM Land Registry transactions. Over five years, prices have moved +45.7%, which affects how comparables from earlier years should be weighted.
These are historical completed-sale prices — not a formal valuation, asking price or investment advice. Use them to sense-check an asking price or set expectations before instructing a surveyor.
Frequently asked questions
What is the average sold price in the SA18 postcode area?
The average sold price in SA18 is £120,290, based on 13,812 HM Land Registry transactions across 651 postcodes.
How does SA18 compare to the national average?
SA18 is -69.9% below the England and Wales national average of £400,016.
Are these figures valuations or asking prices?
No. These are historical completed sale prices from HM Land Registry Price Paid Data. They are not current valuations, asking prices or investment advice.
How many postcodes does the SA18 area cover?
The SA18 postcode area covers 651 individual postcodes with 13,812 registered sales. The largest town grouping is Ammanford.
More about SA18
About this data
All sold price figures on this page come from HM Land Registry Price Paid Data for England and Wales, published under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right. These are historical completed sale prices — they are not current valuations, not forecasts and not investment advice. Past sale prices do not guarantee future values. Always seek independent professional advice before making property or financial decisions. Read the full methodology for details on data cleaning, grouping and limitations.